<?php

/**
 * @file
 * Multiple-user Asset Manager and Borrowing Ambient.
 */

/**
 * Request an item.
 *
 * @param $nid
 *   Requested item.
 */
function muamba_request($nid) {
  // Sanitize
  $nid  = (int) $nid;
  $node = node_load($nid);

  if (!$node) {
    // TODO: error
    return;
  }

  global $user;

  // TODO: check if user is not blocked?
  privatemsg_new_thread(array(user_load($node->uid)), 'User request', 'User has requested an item');
  return t('You have requested an item');
}